27 julio 2015
Compulsory schooling laws significantly increased school attendance rates, especially among lower-class children, and also shifted the occupational distribution toward skilled and non-manual occupations, a researcher has found.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/50gT0E5Luk0″ height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/50gT0E5Luk0/150727153737.htm
